* {
    margin: 0;
    padding: 0;
}

ul {
    list-style: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    border-top: 1px solid rgb(158, 145, 145);
    padding: 10px 0;
}

li {
    flex: 1;
    text-align: center;
}

.active {
    color: chocolate;
}